IS〜IL, WS size, under 10kg. Half-choke collars are flexible in size, so you can use them even with slight variations. This is a half-choke collar that can be used for obedience training. Based on long years of training experience, this item prioritizes the size and tightness when choking, and ease of training, rather than design. It can be used not only for Italian Greyhounds but also for other dog breeds. Thank you for viewing. This item was handmade and purchased. I tried it on once, but the size didn't fit, so I'm selling it.